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Jacq A, Tarris G, Jaugey A, Paindavoine M, Maréchal E, Bard P, Rebibou JM, Ansart M, Calmo D, Bamoulid J, Tinel C, Ducloux D, Crepin T, Chabannes M, Funes de la Vega M, Felix S, Martin L, Legendre M. Automated evaluation with deep learning of total interstitial inflammation and peritubular capillaritis on kidney biopsies. Nephrol Dial Transplant 2023; 38:2786-2798. [PMID: 37197910 DOI: 10.1093/ndt/gfad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Interstitial inflammation and peritubular capillaritis are observed in many diseases on native and transplant kidney biopsies. A precise and automated evaluation of these histological criteria could help stratify patients' kidney prognoses and facilitate therapeutic management. METHODS We used a convolutional neural network to evaluate those criteria on kidney biopsies. A total of 423 kidney samples from various diseases were included; 83 kidney samples were used for the neural network training, 106 for comparing manual annotations on limited areas to automated predictions, and 234 to compare automated and visual gradings. RESULTS The precision, recall and F-score for leukocyte detection were, respectively, 81%, 71% and 76%. Regarding peritubular capillaries detection the precision, recall and F-score were, respectively, 82%, 83% and 82%. There was a strong correlation between the predicted and observed grading of total inflammation, as for the grading of capillaritis (r = 0.89 and r = 0.82, respectively, all P < .0001). The areas under the receiver operating characteristics curves for the prediction of pathologists' Banff total inflammation (ti) and peritubular capillaritis (ptc) scores were respectively all above 0.94 and 0.86. The kappa coefficients between the visual and the neural networks' scores were respectively 0.74, 0.78 and 0.68 for ti ≥1, ti ≥2 and ti ≥3, and 0.62, 0.64 and 0.79 for ptc ≥1, ptc ≥2 and ptc ≥3. In a subgroup of patients with immunoglobulin A nephropathy, the inflammation severity was highly correlated to kidney function at biopsy on univariate and multivariate analyses. CONCLUSION We developed a tool using deep learning that scores the total inflammation and capillaritis, demonstrating the potential of artificial intelligence in kidney pathology.
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Affiliation(s)
- Amélie Jacq
- Department of Nephrology, CHU Dijon, Dijon, France
| | | | - Adrien Jaugey
- ESIREM School, Dijon, France
- LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | - Michel Paindavoine
- LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | | | - Patrick Bard
- ESIREM School, Dijon, France
- LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | - Jean-Michel Rebibou
- Department of Nephrology, CHU Dijon, Dijon, France
- UMR 1098, INCREASE, Besançon, France
| | - Manon Ansart
- ESIREM School, Dijon, France
- LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | - Doris Calmo
- Department of Nephrology, CHU Besançon, Besançon, France
| | - Jamal Bamoulid
- UMR 1098, INCREASE, Besançon, France
- Department of Nephrology, CHU Besançon, Besançon, France
| | - Claire Tinel
- Department of Nephrology, CHU Dijon, Dijon, France
| | - Didier Ducloux
- UMR 1098, INCREASE, Besançon, France
- Department of Nephrology, CHU Besançon, Besançon, France
| | - Thomas Crepin
- UMR 1098, INCREASE, Besançon, France
- Department of Nephrology, CHU Besançon, Besançon, France
| | - Melchior Chabannes
- UMR 1098, INCREASE, Besançon, France
- Department of Nephrology, CHU Besançon, Besançon, France
| | | | - Sophie Felix
- Department of Pathology, CHU Besançon, Besançon, France
| | | | - Mathieu Legendre
- Department of Nephrology, CHU Dijon, Dijon, France
- UMR 1098, INCREASE, Besançon, France
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Hountondji L, Pureur D, Chabannes M, Felix S, Thévenot T. Transjugular Intrahepatic Portosystemic Shunt is effective to treat portal hypertension due to sinusoidal obstructive syndrome. Clin Res Hepatol Gastroenterol 2023; 47:102201. [PMID: 37643693 DOI: 10.1016/j.clinre.2023.102201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
Transjugular Intrahepatic Portosystemic Shunt (TIPS) is an established procedure for the complications of portal hypertension, such as variceal bleeding, refractory ascites and hepatic hydrothorax. We report an original case of a renal transplant patient successfully treated with TIPS for portal hypertension due to sinusoidal obstructive syndrome (SOS) induced by azathioprine (AZA). By reporting this case, we wish to draw the attention of healthcare professionals managing organ transplant patients, especially nephrologists, to the possible occurrence of liver toxicity due to AZA, and to emphasize the role of TIPS as an effective therapeutic option for portal hypertension-related complications.
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Affiliation(s)
- Lina Hountondji
- Service d'Hépatologie et de Soins Intensifs Digestifs, Centre Hospitalier Universitaire Jean Minjoz, 25030 Besançon cedex, France.
| | - Dimitri Pureur
- Service d'Hépatologie et de Soins Intensifs Digestifs, Centre Hospitalier Universitaire Jean Minjoz, 25030 Besançon cedex, France
| | - Melchior Chabannes
- Service de Néphrologie dialyse et transplantation, Centre Hospitalier Universitaire Jean Minjoz, 25000 Besançon, France
| | - Sophie Felix
- Service d'Anatomo-pathologie, Centre Hospitalier Universitaire Jean Minjoz, 25000 Besançon, France
| | - Thierry Thévenot
- Service d'Hépatologie et de Soins Intensifs Digestifs, Centre Hospitalier Universitaire Jean Minjoz, 25030 Besançon cedex, France
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Krause E, Wittfeld K, Vollmer M, Dörr M, Felix S, Stubbe B, Ewert R, Völzke H, Grabe H. P-101 Exploring the dynamics between brain and heart in the Study of Health in Pomerania. Clin Neurophysiol 2023. [DOI: 10.1016/j.clinph.2023.02.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Jaugey A, Maréchal E, Tarris G, Paindavoine M, Martin L, Chabannes M, de la Vega MF, Chaintreuil M, Robier C, Ducloux D, Crépin T, Felix S, Jacq A, Calmo D, Tinel C, Zanetta G, Rebibou JM, Legendre M. Deep learning automation of MEST-C classification in IgA nephropathy. Nephrol Dial Transplant 2023:7040585. [PMID: 36792061 DOI: 10.1093/ndt/gfad039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Though the MEST-C classification is among the best prognostic tools in IgA nephropathy, it has a wide inter-observer variability between specialized pathologists and others. Therefore, we trained and evaluated a tool using Neural Network to automate the MEST-C grading. METHODS Biopsies of patients with IgA nephropathy were divided into three independent groups: the Training cohort (n = 42) to train the Network, the Test cohort (n = 66) to compare its pixel segmentation to that made by pathologists, and the Application cohort (n = 88) to compare the MEST-C scores computed by the Network or by pathologists. RESULTS In the Test cohort, more than 73% of pixels were correctly identified by the Network as M, E, S or C. In the Application cohort, the Neural Network area under the ROC curves were 0.88, 0.91, 0.88, 0.94, 0.96, 0.96 and 0.92 to respectively predict M1, E1, S1, T1, T2, C1 and C2. The kappa coefficients between pathologists and the Network assessments were substantial for E, S, T and C scores (kappa scores respectively of 0.68, 0.79, 0.73 and 0.70) and moderate for M score (kappa score of 0.52). Network S and T scores were associated with the occurrence of the composite survival endpoint (death, dialysis, transplantation or doubling of serum creatinine) (Hazard Ratio respectively of 9.67, P = 0.006 and 7.67, P<0.001). CONCLUSIONS This work highlights the possibility of automated recognition and quantification of each element of the MEST-C classification using Deep Learning methods.
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Affiliation(s)
- Adrien Jaugey
- ESIREM school, Dijon, France.,LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | - Elise Maréchal
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France
| | - Georges Tarris
- Université de Bourgogne Franche Comté, France.,Department of Pathology, CHU Dijon, France
| | - Michel Paindavoine
- ESIREM school, Dijon, France.,LEAD, Laboratoire de l'étude de l'apprentissage et du Développement, Dijon, France
| | - Laurent Martin
- Université de Bourgogne Franche Comté, France.,Department of Pathology, CHU Dijon, France
| | | | | | - Mélanie Chaintreuil
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France
| | - Coline Robier
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France
| | - Didier Ducloux
- Université de Bourgogne Franche Comté, France.,Department of Nephrology, CHU Besançon, France.,UMR 1098, INCREASE, Besançon, France
| | - Thomas Crépin
- Department of Nephrology, CHU Besançon, France.,UMR 1098, INCREASE, Besançon, France
| | | | | | - Doris Calmo
- Department of Nephrology, CHU Besançon, France
| | - Claire Tinel
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France
| | | | - Jean-Michel Rebibou
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France.,UMR 1098, INCREASE, Besançon, France
| | - Mathieu Legendre
- Department of Nephrology, CHU Dijon, France.,Université de Bourgogne Franche Comté, France.,UMR 1098, INCREASE, Besançon, France
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Knapp J, Lallemand S, Monnien F, Felix S, Courquet S, Umhang G, Millon L. Real-time multiplex PCR for human echinococcosis and differential diagnosis. Parasite 2023; 30:3. [PMID: 36700708 PMCID: PMC9886084 DOI: 10.1051/parasite/2023003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/06/2023] [Indexed: 01/27/2023] Open
Abstract
Molecular identification of rare human infectious pathogens appears to be one of the most relevant current methods for rapid diagnosis and management of patients. PCR techniques, in particular real-time quantitative PCR, are best suited for the detection of DNA from the pathogens, even at low concentrations. Echinococcosis infections are due to helminths of the Echinococcus genus, with closely related species involved in parasitic lesions affecting animals and, accidentally, humans. We developed a multiplex qPCR (MLX qPCR) assay allowing for the detection of four Echinococcus species involved in Europe in alveolar echinococcosis (AE) and cystic echinococcosis (CE) (Echinococcus multilocularis, E. granulosus sensu stricto, E. ortleppi, and E. canadensis), based on short mitochondrial targets. A collection of 81 fresh and formalin-fixed paraffin-embedded tissues (FFPE) of AE and CE lesions was assembled. The qPCR assays were performed in triplex for Echinococcus spp. detection, associated with a qPCR inhibitor control. A duplex qPCR was also designed to enable diagnosis of two other dead-end helminthiases (cysticercosis (Taenia solium), and toxocariasis (Toxocara cati and T. canis)). The sensitivity of the qPCR was assessed and ranged from 1 to 5 × 10-4 ng/μL (seven PCR assays positive), corresponding to 37-42 cycles for quantifiable DNA. The specificity was 100% for all the targets. This multiplex qPCR, adapted to low amounts of DNA can be implemented in the laboratory for the rapid molecular diagnosis of Echinococcosis species.
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Affiliation(s)
- Jenny Knapp
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon 25030 Besançon France,UMR CNRS 6249 Laboratoire Chrono-environnement, University of Franche-Comté 16 Route de Gray 25030 Besançon France,Corresponding author:
| | - Séverine Lallemand
- UMR CNRS 6249 Laboratoire Chrono-environnement, University of Franche-Comté 16 Route de Gray 25030 Besançon France
| | - Franck Monnien
- Department of Pathology, University Hospital of Besançon 25030 Besançon France
| | - Sophie Felix
- Department of Pathology, University Hospital of Besançon 25030 Besançon France
| | - Sandra Courquet
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon 25030 Besançon France,UMR CNRS 6249 Laboratoire Chrono-environnement, University of Franche-Comté 16 Route de Gray 25030 Besançon France
| | - Gérald Umhang
- ANSES Nancy laboratory for Rabies and Wildlife, National Reference Laboratory for Echinococcus spp., Wildlife Surveillance and Eco-epidemiology Unit, Technopole Agricole et Vétérinaire 54220 Malzéville France
| | - Laurence Millon
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon 25030 Besançon France,UMR CNRS 6249 Laboratoire Chrono-environnement, University of Franche-Comté 16 Route de Gray 25030 Besançon France
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Klingenberg R, Gross S, Lehnert K, Wegner D, Hamm CW, Felix S, Keller T, Doerr M. Impact of inflammatory phenotype on prognostic discrimination for the novel biomarker cellular communication network factor 1 (CCN1) in patients with dilated cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Objective
Circulating cellular communication network factor 1 (CCN1) improves risk stratification in ACS patients and, as we have recently shown, predicts all-cause mortality in patients with dilated cardiomyopathy (DCM). It was the aim of this study to evaluate whether the prognostic role of CCN1 is influenced by an inflammatory phenotype.
Methods
Patients with a primary diagnosis of DCM, defined as LVEF <45% and an increased LVEDD (according to HENRY >117%), were included in this single-center study. Exclusion criteria comprised primary valvular diseases (≥second degree), acute myocarditis, active infectious diseases, pulmonary diseases, cancer, chronic alcoholism, and heart failure of other origins. CCN1 levels were determined in serum at study inclusion using an enzyme-linked immunosorbent assay. The primary endpoint was all-cause mortality during follow-up. An adjusted multivariable cox regression model was used to assess the association between CCN1 and all-cause mortality. We further analysed potential effect modifications by adding either an interaction term between CCN1 and DCMi diagnosis (DCMi vs. DCM). The Meta-Analysis Global Group in Chronic Heart Failure (MAGGIC) score to predict all-cause mortality in HF patients was used as a reference model. The performance of CCN1 in combination with the MAGGIC score and NT-proBNP to predict all-cause mortality was assessed using Cox's proportional-hazards models
Results
A total of 283 predominantly male DCM patients (78.5% males) with a median age of 55.7 (interquartile range [IQR 48.2, 65.7]) years and predominantly recent onset of disease (3.8 [IQR 1.1, 20.5] months) with a severely reduced LVEF (31 [IQR 25, 37] %), increased LVEDD (67.0 [IQR 62.8, 72.0] mm), and normal eGFR (CKD-EPI) (90.9 [IQR73.9, 102.4] ml/min) were analyzed. During a median follow-up of 12.4 [IQR 10.5, 14.0] years, a total of 107 (37.8%) patients died. Patients in the highest CCN1 tertile had a significantly higher mortality risk than those in the lower tertile (HR 1.82; 95% CI 1.06, 3.14; P=0.030) in adjusted multivariable Cox regression models. Adding CCN1 to the MAGGIC risk score improved c-statistics for prognostic accuracy of all-cause mortality at 6 years (0.624 to 0.645, p=0.012), unlike NT-proBNP (0.624 to 0.630, p=0.123). Patients classified as DCMi (n=128) had significantly lower CCN1 levels compared with classical DCM (n=155) (154.9 (115.4–191.7) vs. 174.7 (130.0–241.0) pg/ml, P=0.022). Inflammation status (DCMi vs DCM) had no significant impact (P interaction = 0.28) on the association of CCN1 and all-cause mortality (Fig. 1).
Conclusion
CCN1 independently predicts all-cause mortality in DCM patients and improves risk stratification beyond the MAGGIC score. In this pilot cohort, the inflammatory phenotype had no impact on prognostic discrimination. Data are currently analyzed in a validation cohort.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Kerckhoff Research Foundation
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Affiliation(s)
- R Klingenberg
- Kerckhoff Heart and Thorax Center , Bad Nauheim , Germany
| | - S Gross
- University Hospital of Greifswald , Greifswald , Germany
| | - K Lehnert
- University Hospital of Greifswald , Greifswald , Germany
| | - D Wegner
- University Hospital of Greifswald , Greifswald , Germany
| | - C W Hamm
- Kerckhoff Heart and Thorax Center , Bad Nauheim , Germany
| | - S Felix
- University Hospital of Greifswald , Greifswald , Germany
| | - T Keller
- Justus-Liebig University of Giessen , Giessen , Germany
| | - M Doerr
- University Hospital of Greifswald , Greifswald , Germany
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Clément M, Cervoni JP, Renosi F, Thévenot T, Felix S, Doussot A, Heyd B, Deconinck É, Martino VD. Acute fulminant hepatitis related to the use of dasatinib: First case report. Clin Res Hepatol Gastroenterol 2022; 46:102004. [PMID: 35961592 DOI: 10.1016/j.clinre.2022.102004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 07/29/2022] [Accepted: 08/09/2022] [Indexed: 02/04/2023]
Affiliation(s)
- Morgane Clément
- Service d'Hépatologie et de Soins Intensifs Digestifs, CHRU Jean Minjoz, 25030 Besançon Cedex, France
| | - Jean-Paul Cervoni
- Service d'Hépatologie et de Soins Intensifs Digestifs, CHRU Jean Minjoz, 25030 Besançon Cedex, France.
| | | | - Thierry Thévenot
- Service d'Hépatologie et de Soins Intensifs Digestifs, CHRU Jean Minjoz, 25030 Besançon Cedex, France
| | - Sophie Felix
- Service d'Anatomo-pathologie, CHRU Jean Minjoz, 25030 Besançon Cedex, France
| | - Alexandre Doussot
- Service de Chirurgie Digestive et Unité de Transplantation Hépatique, CHRU Jean Minjoz, 25030 Besançon Cedex, France
| | - Bruno Heyd
- Service de Chirurgie Digestive et Unité de Transplantation Hépatique, CHRU Jean Minjoz, 25030 Besançon Cedex, France
| | - Éric Deconinck
- Service d'Hématologie, CHRU Jean Minjoz, 25030 Besançon Cedex, France; Inserm UMR1098 Right, Université de Franche Comté, Besançon, France
| | - Vincent Di Martino
- Service d'Hépatologie et de Soins Intensifs Digestifs, CHRU Jean Minjoz, 25030 Besançon Cedex, France
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Knapp J, Lallemand S, Monnien F, Felix S, Valmary-Degano S, Courquet S, Demonmerot F, Heyd B, Turco C, Doussot A, Bourgeois L, Bresson-Hadni S, Richou C, Millon L. Molecular diagnosis of alveolar echinococcosis in patients based on frozen and formalin-fixed paraffin-embedded tissue samples. Parasite 2022; 29:4. [PMID: 35113014 PMCID: PMC8812296 DOI: 10.1051/parasite/2022004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 01/14/2022] [Indexed: 11/14/2022] Open
Abstract
Confirmed diagnosis of alveolar echinococcosis (AE) is based on pathological criteria and molecular evidence. This parasite-borne disease, caused by the cestode Echinococcus multilocularis, sparingly involves humans as a dead-end host. In humans, the parasite mainly colonizes the liver but can colonize any organ and cause atypical forms, often difficult to characterize clinically. Moreover, molecular methods may be suitable to make the diagnosis of AE in cases of atypical forms, extra-hepatic localizations, or immunosuppressed patients. The aim of this study was to determine the most relevant published PCR techniques, for diagnosis of AE in patients and adopt the best strategy for molecular diagnosis depending on the nature of the tested sample. In this study, we evaluated nine end-point PCR assays and one real-time PCR assay (qPCR), targeting mitochondrial genes, using a total of 89 frozen or formalin-fixed paraffin-embedded (FFPE) samples from either 48 AE or 9 cystic echinococcosis patients. Targeted fragment-genes ranged from 84 to 529 bp. Six PCR assays were able to amplify the DNA of 100% of the frozen AE-samples and for one PCR, 69.8% of the FFPE AE-samples. The 16S rrnL PCR (84 bp) was positive in PCR for 77% of the AE samples and in qPCR for 86.5%. The sensitivity of the PCR assays was higher for fresh samples and FFPE samples stored for less than 5 years. The qPCR assay further increased sensitivity for the tested samples, confirming the need for the development of an Echinococcus spp. qPCR to improve the molecular diagnosis of echinococcoses.
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Affiliation(s)
- Jenny Knapp
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France - UMR CNRS 6249 Laboratoire Chrono-environnement, Université Bourgogne-Franche-Comté, 16 Route de Gray, 25030 Besançon, France
| | - Séverine Lallemand
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France
| | - Franck Monnien
- Department of Pathology, University Hospital of Besançon, 25030 Besançon, France
| | - Sophie Felix
- Department of Pathology, University Hospital of Besançon, 25030 Besançon, France
| | - Séverine Valmary-Degano
- Department of Pathology, University Hospital of Besançon, 25030 Besançon, France - Department of Pathology, University Hospital of Grenoble-Alps, 38043 Grenoble, France
| | - Sandra Courquet
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France - UMR CNRS 6249 Laboratoire Chrono-environnement, Université Bourgogne-Franche-Comté, 16 Route de Gray, 25030 Besançon, France
| | - Florent Demonmerot
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France
| | - Bruno Heyd
- Visceral, Digestive and Cancer Surgery, Hepatic Transplantation Unit, University Hospital of Besançon, 25030 Besançon, France
| | - Celia Turco
- Department of Digestive Surgery, Hepato-Biliary-Pancreatic and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital - Charles-Foix, 75651 Paris, France
| | - Alexandre Doussot
- Visceral, Digestive and Cancer Surgery, Hepatic Transplantation Unit, University Hospital of Besançon, 25030 Besançon, France
| | - Lucie Bourgeois
- Department of Pathology, University Hospital of Besançon, 25030 Besançon, France
| | - Solange Bresson-Hadni
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France - UMR CNRS 6249 Laboratoire Chrono-environnement, Université Bourgogne-Franche-Comté, 16 Route de Gray, 25030 Besançon, France
| | - Carine Richou
- Department of Hepatology, University Hospital of Besançon, 25030 Besançon, France
| | - Laurence Millon
- Department of Parasitology-Mycology, National Reference Centre for Echinococcoses, University Hospital of Besançon, 25030 Besançon, France - UMR CNRS 6249 Laboratoire Chrono-environnement, Université Bourgogne-Franche-Comté, 16 Route de Gray, 25030 Besançon, France
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9
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Marechal E, Jaugey A, Tarris G, Paindavoine M, Seibel J, Martin L, Funes de la Vega M, Crepin T, Ducloux D, Zanetta G, Felix S, Bonnot PH, Bardet F, Cormier L, Rebibou JM, Legendre M. Automatic Evaluation of Histological Prognostic Factors Using Two Consecutive Convolutional Neural Networks on Kidney Samples. Clin J Am Soc Nephrol 2022; 17:260-270. [PMID: 34862241 PMCID: PMC8823945 DOI: 10.2215/cjn.07830621] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 11/16/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVES The prognosis of patients undergoing kidney tumor resection or kidney donation is linked to many histologic criteria. These criteria notably include glomerular density, glomerular volume, vascular luminal stenosis, and severity of interstitial fibrosis/tubular atrophy. Automated measurements through a deep-learning approach could save time and provide more precise data. This work aimed to develop a free tool to automatically obtain kidney histologic prognostic features. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In total, 241 samples of healthy kidney tissue were split into three independent cohorts. The "Training" cohort (n=65) was used to train two convolutional neural networks: one to detect the cortex and a second to segment the kidney structures. The "Test" cohort (n=50) assessed their performance by comparing manually outlined regions of interest to predicted ones. The "Application" cohort (n=126) compared prognostic histologic data obtained manually or through the algorithm on the basis of the combination of the two convolutional neural networks. RESULTS In the Test cohort, the networks isolated the cortex and segmented the elements of interest with good performances (>90% of the cortex, healthy tubules, glomeruli, and even globally sclerotic glomeruli were detected). In the Application cohort, the expected and predicted prognostic data were significantly correlated. The correlation coefficients r were 0.85 for glomerular volume, 0.51 for glomerular density, 0.75 for interstitial fibrosis, 0.71 for tubular atrophy, and 0.73 for vascular intimal thickness, respectively. The algorithm had a good ability to predict significant (>25%) tubular atrophy and interstitial fibrosis level (receiver operator characteristic curve with an area under the curve, 0.92 and 0.91, respectively) or a significant vascular luminal stenosis (>50%) (area under the curve, 0.85). CONCLUSION This freely available tool enables the automated segmentation of kidney tissue to obtain prognostic histologic data in a fast, objective, reliable, and reproducible way.
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Affiliation(s)
- Elise Marechal
- Department of Nephrology, CHU Dijon, France,Université de Bourgogne Franche comté, France,UMR 1098, INCREASE, Besançon, France
| | - Adrien Jaugey
- Université de Bourgogne Franche comté, France,ESIREM school, Dijon, France
| | - Georges Tarris
- Université de Bourgogne Franche comté, France,Department of Pathology, CHU Besançon France
| | - Michel Paindavoine
- Université de Bourgogne Franche comté, France,ESIREM school, Dijon, France,Laboratoire de l’étude de l’apprentissage et du Développement, Dijon, France
| | - Jean Seibel
- Department of Nephrology, CHU Dijon, France,Department of Nephrology, CHU Besançon, France
| | - Laurent Martin
- Université de Bourgogne Franche comté, France,Department of Pathology, CHU Dijon, France
| | | | - Thomas Crepin
- Université de Bourgogne Franche comté, France,UMR 1098, INCREASE, Besançon, France,Department of Nephrology, CHU Besançon, France
| | - Didier Ducloux
- Université de Bourgogne Franche comté, France,UMR 1098, INCREASE, Besançon, France,Department of Nephrology, CHU Besançon, France
| | | | | | | | - Florian Bardet
- Université de Bourgogne Franche comté, France,Department of Urology, CHU Dijon France
| | - Luc Cormier
- Université de Bourgogne Franche comté, France,Department of Urology, CHU Dijon France
| | - Jean-Michel Rebibou
- Department of Nephrology, CHU Dijon, France,Université de Bourgogne Franche comté, France,UMR 1098, INCREASE, Besançon, France
| | - Mathieu Legendre
- Department of Nephrology, CHU Dijon, France,Université de Bourgogne Franche comté, France,UMR 1098, INCREASE, Besançon, France
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10
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Haid M, Bahls M, Doerr M, Felix S, Zylla S, Markus M, Friedrich N, Ewert R, Glaeser S. Galectin-3 is inversely associated with cardiorespiratory fitness in the general population. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Low cardiorespiratory fitness (CRF) is associated with high mortality and morbidity. Galectin-3 (Gal-3) is a prognostic biomarker for fibrosis, different cancers, renal impairment and, in particular, for heart failure. Further, higher Gal-3 levels are associated with increased cardiovascular mortality. Whether Gal-3 is related with the protective effects of a high CRF is unclear.
Purpose
The present study examined the relation between Gal-3 and CRF as determined by body weight adjusted peak oxygen uptake (VO2peak/kg), oxygen uptake at the anaerobic threshold (VO2@AT) and maximal workload (Wmax).
Methods
We used data of the population-based Study of Health in Pomerania (SHIP-TREND) from Northeast Germany. A total of n = 1,483 participants with a median age of 49 (IQR: 39 – 59 years, male 48%) were included in the analysis. CRF parameters were measured using standardized cardiopulmonary exercise testing on a bicycle ergometer. Plasma galectin-3 concentrations were determined using a quantitative sandwich enzyme immunoassay. Individuals with left ventricular ejection fraction < 40%, previous myocardial infarction, atrial fibrillation, chronic lung disease, severe renal disease (eGFR < 30 ml/min/mm2), a history of cancer, and extreme values for Gal-3 were excluded. Linear regression models adjusted for age, sex and lean mass were used to analyze the association between Gal-3 and CRF.
Results
A one ml/min/kg greater VO2peak was related to a 0.32 ng/ml (95% confidence interval [CI] -0.45 to -0.18, p <.001) lower Gal-3. Further, a one Watt larger power output was also associated with a 1.32 ng/ml (95% CI -2.10 to – 0.54, p <.001) lesser Gal-3. VO2@AT was not related to Gal-3 (β: -3.31 95% CI -8.68 to 2.05, p = .23).
Conclusions
In the general population Gal-3 is inversely associated with CRF. Further studies should investigate whether lower Gal-3, beyond its importance as a biomarker for heart disease, may even play a role in the protective effect of the CRF.
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Affiliation(s)
- M Haid
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - M Bahls
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - M Doerr
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - S Felix
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - S Zylla
- University of Greifswald, Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - M Markus
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - N Friedrich
- University of Greifswald, Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - R Ewert
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - S Glaeser
- University of Greifswald, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
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11
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Rotheudt L, Moritz E, Markus M, Voelzke H, Friedrich N, Rauch B, Schwedhelm E, Buelow R, Schminke U, Felix S, Doerr M, Bahls M. The association between S1P and vascular disease markers in the general population. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Sphingosine-1-phosphate (S1P) is a lipid mediator of the immune system and vascular bed. However, cross-sectional analyses of S1P and parameters of vascular health in the population are sparse.
Purpose
We explored the relation between S1P concentrations and several parameters of vascular health, i.e. ankle-brachial index (ABI), carotid intima-media thickness (cIMT), presence of carotid atherosclerotic plaques/stenosis, brachial artery flow-mediated dilation (FMD) as well as aortic wall thickness (AWT).
Methods
S1P was measured by liquid chromatography-tandem mass spectrometry in the population-based Study of Health in Pomerania (SHIP-TREND-0). ABI was calculated as the ratio of systolic blood pressure in arms and ankles. For cIMT, the distance between the lumen-intima and media-adventitia interfaces in longitudinal scans were measured. Carotid plaques were defined as a focal protrusion of the carotid vessel wall. Carotid stenosis was assessed with Doppler ultrasonography. FMD was evaluated by measuring the increase in brachial artery diameter after transient forearm ischemia. AWT was assessed by Magnetic Resonance Imaging. Subjects with cancer, severe renal insufficiency, previous myocardial infarction and extreme values for S1P (< 1st and > 99th percentile) were excluded. Sex stratified linear regression models adjusted for age, smoking, waist-to-hip ratio and platelets were used to assess the relation between S1P and vascular disease parameters.
Results
A total of n = 3,643 participants (48% male, median age 51, 25th and 75th percentile 39 and 63 years) could be included in the analyses. The median S1P concentration was 0.788 µM (25th and 75th percentile 0.679 and 0.906, respectively). In men a 1 standard deviation higher S1P was associated with a significantly greater cIMT (β: 0.0057 95% confidence interval [CI]: 0.00027 to 0.0112 mm; p = 0.0396) and a lower ABI (β: -0.0090 (95% confidence interval [CI]: -0.0153 to -0.0029; p = 0.0038. In women S1P was significantly associated with cIMT (β: 0.0044 95% confidence interval [CI]: 0.0001 to 0.0086 mm; p = 0.0445) while no significant association was found for the relation of S1P with ABI. For both men and women S1P was not associated with FMD, the presence of carotid plaques/stenosis and AWT.
Conclusions
We found that S1P concentrations were positively related to a thicker cIMT in both sexes and lower ABI values in men. There was no association of S1P with any of the other vascular markers of interest. Future studies need to validate our results in other populations.
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Affiliation(s)
- L Rotheudt
- University of Greifswald, Department of Internal Medicine B , Greifswald, Germany
| | - E Moritz
- University of Greifswald, Institute of Pharmacology, Department of General Pharmacology, Greifswald, Germany
| | - M Markus
- University of Greifswald, Department of Internal Medicine B , Greifswald, Germany
| | - H Voelzke
- University of Greifswald, Institute of Community Medicine, Greifswald, Germany
| | - N Friedrich
- University of Greifswald, Institute of Clinical Chemistry and Laboratory Medicine, Greifswald, Germany
| | - B Rauch
- University of Greifswald, Institute of Pharmacology, Department of General Pharmacology, Greifswald, Germany
| | - E Schwedhelm
- University Medical Center Hamburg Eppendorf, Institute of Clinical Pharmacology and Toxicology, Hamburg, Germany
| | - R Buelow
- University of Greifswald, Department of Radiology , Greifswald, Germany
| | - U Schminke
- University of Greifswald, Department of Neurology , Greifswald, Germany
| | - S Felix
- University of Greifswald, Department of Internal Medicine B , Greifswald, Germany
| | - M Doerr
- University of Greifswald, Department of Internal Medicine B , Greifswald, Germany
| | - M Bahls
- University of Greifswald, Department of Internal Medicine B , Greifswald, Germany
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12
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Lanmueller P, Eulert-Grehn JJ, Felix S, Pieske B, Mulzer J, Mueller M, Falk V, Potapov E. Long-Term Mechanical Circulatory Support in Patients with Heart Failure with Preserved Ejection Fraction. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Nersesian G, Nelki VA, Tschöpe C, Stein J, Starck C, Falk V, Felix S, Krackhardt F, Potapov E, Spillmann F. Dual-Center Retrospective Analysis of 30-Day Survival in Cardiogenic Shock Patients Supported with Catheter-Based Microaxial Left Ventricular Assist Devices. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Felix S, Oerlemans M, Asselbergs F, Van Laake L, De Jonge N. Predictors of late right heart failure after mechanical circulatory support. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Right heart failure (RHF) is associated with a worse outcome in mechanical circulatory support (MCS). Several studies have identified risk factors for RHF shortly after MCS, though information about late RHF is limited.
Purpose
We aimed to identify risk factors for late RHF in patients with MCS, implanted as a bridge to heart transplantation.
Methods
Data of all patients, who were successfully discharged after MCS implantation in a University Medical Center between 2006–2019 were included and follow-up was completed until March 2019. Late RHF was defined as the occurrence of right ventricular dysfunction associated with symptoms, including jugular venous distension, hepatic congestion and peripheral edema during MCS support, if diagnosed after the index admission for MCS implantation. The primary end point was the diagnosis of late RHF in combination with the need for intensification of diuretics (either with or without hospitalization) and/or the need for inotropes and/or right ventricular assist device. Univariable and multivariable Cox regression analyses were performed to identify risk factors for late RHF.
Results
262 patients (66% male, mean age 51±13 years) had a mean follow-up of 901±643 days. 49 (18.7%) patients suffered from late RHF after a median of 363 (IQR 131–1001) days. Multivariable risk factors for late RHF were a higher body mass index (hazard ratio (HR) 1.05; CI 1.00–1.11), a history of atrial fibrillation (AF) prior to the operation (HR 2.11; CI 1.12–3.96), a lower (i.e. clinically worse) INTERMACS profile and a longer duration on the intensive care unit (HR 1.03; CI 1.00–1.06) during the index admission for MCS implantation (Table 1). The occurrence of early RHF was not associated with late RHF (p=0.211).
Conclusion
Late RHF is a clinically important adverse event in MCS, affecting approximately 20% of patients. Risk factors associated with late RHF most relate to the severity of the clinical situation at the time of implantation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Felix
- University Medical Center Utrecht, Cardiology, Utrecht, Netherlands (The)
| | - M.I.F Oerlemans
- University Medical Center Utrecht, Cardiology, Utrecht, Netherlands (The)
| | - F.W Asselbergs
- University Medical Center Utrecht, Cardiology, Utrecht, Netherlands (The)
| | - L.W Van Laake
- University Medical Center Utrecht, Cardiology, Utrecht, Netherlands (The)
| | - N De Jonge
- University Medical Center Utrecht, Cardiology, Utrecht, Netherlands (The)
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15
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Poller C, Kuss A, Weiss S, Haghikia A, Gast M, Mochmann L, Zeller T, Blankenberg S, Felix S, Voelker U, Doerr M, Voelzke H, Hoffmann W, Landmesser U, Rauch B. Experimental and population-genetic evidence for inflammation control functions of long noncoding RNAs and a novel tRNA-like transcript arising from the human NEAT1-MALAT1 genomic region. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Uncontrolled inflammation is a key driver of atherosclerosis, myocardial infarction (MI), and multiple other diseases. Beyond proteins and microRNAs, long noncoding RNAs (lncRNAs) are implicated in inflammation control. We previously reported suppression of lncRNA NEAT1 in circulating immune cells of post-MI patients. In mice lacking lncRNAs NEAT1 or MALAT1 we observed major immune disturbances affecting monocyte-macrophage and T cell differentiation and rendering the immune system unstable and highly vulnerable to immune stress. Here, we report functions of a novel tRNA-type transcript arising from the NEAT1-MALAT1 gene cluster, and on genetic heterogeneity of this region in the human population.
Methods and results
While previously investigated mice were deficient in the entire NEAT1 or MALAT1 locus, we here aimed to selectively disrupted only the novel 59-nt tRNA-like transcript “menRNA” with hitherto unknown functions. Through CRISPR/Cas9 editing we developed 4 human THP-1 monocyte-macrophage cell line clones with deletions of different extension all of which prevented, however, normal transcript folding and formation of “menRNA”. Transcriptome mapping of all clones by RNA-sequencing identified dysregulation of innate immunity-related genes (IFI16, IFITM3, IRAK3, IRF2BP2, IRF3), chemokine and interleukin receptors (CCR10, IL11RA, IL12RB2, IL23A), cell surface receptors (CD37, CD40LG, CD72, FOCAD, ITGA6, MAEA, THY1), macrophage function-associated genes (ELANE, GRN, MIF, MMP25, MST1P2, PRTN3), tRNA-processing transcripts (GARS, QRSL1P3, QTRT1P1, THG1L, VARS), and small nucleolar RNAs (SNORA26.62.64, SNORD65.112). These data and functional assays indicate functions of NEAT1-derived “menRNA” distinct from those previously described for MALAT1-derived mascRNA.
As multiple data suggest inflammation control functions of the NEAT1-MALAT1 region, we investigated the extent of genetic variability of this region in humans. In cohorts from the SHIP study coordinated by the Institute for Community Medicine Greifswald, screening of this region for sequence variants and possible phenotype associations was conducted the results of which are given in Figure 1. Consistent with prior findings, a MALAT1 SNP with very low minor allele frequency (MAF=0.01) was associated (p=0.0062) with systemic low level inflammation (CRP >3.0 mg/L). Unexpected was the association (p<0.01) of eight SNPs (low MAF=0.09 for all) with BMI >35 kg/m2 and LDL >164 mg/dl.
Conclusions
First, selective disruption of menRNA formation in human monocyte-macrophages provides evidence that this novel type of noncoding RNA has immunoregulatory functions. Second, the phenotype associations of SNPs within the NEAT1-MALAT1 gene cluster warrant further in-depth investigation of the molecular basis of these associations, and of their allele frequencies in cardiovascular disease patient cohorts.
The first three and the last authors contributed equally to this work.
Figure 1
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): “Transcriptome analysis of circulating immune cells to improve the assessment of prognosis and the response to novel anti-inflammatory treatments after myocardial infarction”; DZHK Shared Expertise project B19-006_SE FKZ 81X2100257
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Affiliation(s)
- C Poller
- Charite - Campus Benjamin Franklin, Berlin, Germany
| | - A.W Kuss
- University of Greifswald, Greifswald, Germany
| | - S Weiss
- University of Greifswald, Greifswald, Germany
| | - A Haghikia
- Charite - Campus Benjamin Franklin, Berlin, Germany
| | - M Gast
- Charite - Campus Benjamin Franklin, Berlin, Germany
| | - L Mochmann
- Charite - Campus Benjamin Franklin, Berlin, Germany
| | - T Zeller
- University Heart Center Hamburg, Cardiology, Hamburg, Germany
| | - S Blankenberg
- University Heart Center Hamburg, Cardiology, Hamburg, Germany
| | - S Felix
- University Hospital of Greifswald, Cardiology, Greifswald, Germany
| | - U Voelker
- University of Greifswald, Interfakultäres Institut für Genetik und Funktionelle Genomforschung, Greifswald, Germany
| | - M Doerr
- Universitaetsmedizin Greifswald, Institute for Community Medicine, Greifswald, Germany
| | - H Voelzke
- Universitaetsmedizin Greifswald, Institute for Community Medicine, Greifswald, Germany
| | - W Hoffmann
- Universitaetsmedizin Greifswald, Institute for Community Medicine, Greifswald, Germany
| | - U Landmesser
- Charite - Campus Benjamin Franklin, Berlin, Germany
| | - B Rauch
- Universitätsmedizin Greifswald, Institute for Pharmacology, Greifswald, Germany
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16
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Miquelestorena-Standley E, Jaulerry C, Machet MC, Rabot N, Barbet C, Hummel A, Karras A, Garrouste C, Crepin T, Ducloux D, Cousin M, Albert C, Rivalan J, Cornec-Le Gall E, Pourreau F, Deltombe C, Nochy D, Szlavik N, Felix S, Croué A, Buob D, Rioux-Leclerc N, Doucet L, Goujon JM, Renaudin K, Blanchard E, Eymieux S, Rabant M, Halimi JM. Clinicopathologic features of infection-related glomerulonephritis with IgA deposits: a French Nationwide study. Diagn Pathol 2020; 15:62. [PMID: 32460869 PMCID: PMC7254713 DOI: 10.1186/s13000-020-00980-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022] Open
Abstract
Background Infection-related glomerulonephritis with IgA deposits (IRGN-IgA) is a rare disease but it is increasingly reported in the literature. Data regarding epidemiology and outcome are lacking, especially in Europe. We aimed to assess the clinical, pathologic and outcome data of IRGN-IgA. Methods Clinical and outcome data from patients from 11 French centers over the 2007–2017 period were collected retrospectively. We reviewed pathologic patterns and immunofluorescence of renal biopsies and evaluated C4d expression in IRGN-IgA. We analyzed the correlation between histological presentation and outcome. Results Twenty-seven patients (23 men, mean age: 62 ± 15 years) were included. Twenty-one (78%) had Staphylococcus aureus infection and twelve (44%) were diabetic. At the time of biopsy, 95.2% had haematuria, 48.1% had a serum creatinine level of > 4 mg/dL, and 16% had hypocomplementemia. The most common pathologic presentation included mesangial (88.9%) and endocapillary proliferative glomerulonephritis (88.9%) with interstitial fibrosis and tubular atrophy (IF/TA) (85.1%). Diffuse and global glomerular C4d expression was found in 17.8%, mostly in biopsies with acute or subacute patterns, and was associated with a short delay between infection and renal biopsy compared to segmental and focal staining. After median follow-up of 13.2 months, 23.1% died, 46.2% had persistent renal dysfunction and 15.4% reached end-stage renal disease. Renal outcome was correlated to IF/TA severity. Conclusions Infection-related glomerulonephritis with IgA deposits is usually associated with Staphylococcus infections and mainly affects adult men. This entity has a poor prognosis which is correlated to interstitial fibrosis and tubular atrophy severity.
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Affiliation(s)
- Elodie Miquelestorena-Standley
- Service d'anatomie et cytologie pathologiques, Hôpital Trousseau, CHRU Tours, Tours, France. .,Université de Tours, PRES Centre-Val de Loire, Tours, France.
| | - Charlotte Jaulerry
- Université de Tours, PRES Centre-Val de Loire, Tours, France.,Service de néphrologie, CHRU de Tours, Tours, France
| | - Marie-Christine Machet
- Service d'anatomie et cytologie pathologiques, Hôpital Trousseau, CHRU Tours, Tours, France.,Université de Tours, PRES Centre-Val de Loire, Tours, France
| | - Nolwenn Rabot
- Service de néphrologie, CHRU de Tours, Tours, France
| | | | - Aurélie Hummel
- Service de néphrologie, Hôpital Necker-enfants malades, Paris, France
| | - Alexandre Karras
- Service de néphrologie, Hôpital européen Georges Pompidou, Paris, France
| | - Cyril Garrouste
- Service de néphrologie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Thomas Crepin
- Service de néphrologie, CHU de Besançon, Besançon, France
| | - Didier Ducloux
- Service de néphrologie, CHU de Besançon, Besançon, France
| | - Maud Cousin
- Service de néphrologie, CHU d'Angers, Angers, France
| | | | | | | | | | - Clément Deltombe
- Service de néphrologie et immunologie clinique, Institut de transplantation urologie et néphrologie ITUN, CHU de Nantes, Nantes, France
| | - Dominique Nochy
- Service d'anatomie pathologique, Hôpital européen Georges Pompidou, Paris, France
| | - Nora Szlavik
- Service d'anatomie pathologique, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Sophie Felix
- Service d'anatomie pathologique, CHU de Besançon, Besançon, France
| | - Anne Croué
- Service d'anatomie pathologique, CHU d'Angers, Angers, France
| | - David Buob
- Service d'anatomie pathologique, Hôpital Tenon, Paris, France
| | | | - Laurent Doucet
- Service d'anatomie pathologique, CHU de Brest, Brest, France
| | | | - Karine Renaudin
- Service d'anatomie pathologique, CHU de Nantes, Nantes, France
| | - Emmanuelle Blanchard
- Université de Tours, PRES Centre-Val de Loire, Tours, France.,Plateforme IBiSA de Microscopie Electronique, CHRU de Tours, Tours, France
| | - Sébastien Eymieux
- Université de Tours, PRES Centre-Val de Loire, Tours, France.,Plateforme IBiSA de Microscopie Electronique, CHRU de Tours, Tours, France
| | - Marion Rabant
- Service d'anatomie pathologique, Hôpital Necker-enfants malades, Paris, France
| | - Jean-Michel Halimi
- Université de Tours, PRES Centre-Val de Loire, Tours, France.,Service de néphrologie, CHRU de Tours, Tours, France
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17
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Zyskowski M, Pesch S, Greve F, Wurm M, von Matthey F, Pfeiffer D, Felix S, Buchholz A, Kirchhoff C. Concomitant Intra-Articular Glenohumeral Lesions in Fractures of the Scapula Body. J Clin Med 2020; 9:jcm9040943. [PMID: 32235465 PMCID: PMC7230789 DOI: 10.3390/jcm9040943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Scapula body fractures are rare injuries with an incidence of 1% of all fractures accounting for 3% to 5% of all upper extremity fractures. Fractures of the scapula commonly result from high-energetic trauma and fall from great height. While several studies focused on concomitant injuries of chest and head as well as the cervical spine, up to now in the common literature, no study exists analyzing the prevalence of concomitant intra-articular glenohumeral injury following extra-articular scapular fracture. Objectives: The aim of this study was to analyze the prevalence of concomitant intra-articular glenohumeral injuries in acute fractures of the scapula by performing magnetic resonance imaging (MRI) of the shoulder joint. Study Design and Methods: This prospective cohort study was performed at our academic Level I trauma center from November 2014 to October 2016. According to our clinical algorithm, all patients suffering from an acute scapula body fracture primarily underwent computed tomography (CT) for assigning the fracture according to the Orthopedic Trauma Association (OTA)-classification and therapy planning. In addition, 3 T MRI-scans of all patients were performed within seven days after trauma. Results: Twenty-one (16 male/5 female, mean age 53 years (25–83 y) patients with scapula body fractures (OTA 14.A3.2 80.1%, OTA 14.A3.1 4.8%, OTA14.B3.1 4.8%, OTA14.C3 9.5%) were enrolled. MRI revealed 11 acute intra-articular injuries in 8 of 21 patients (38%). In all 21 patients, hematoma of the rotator cuff and periarticular muscles was present. Three patients (14.3%) presented a partial bursa sided tear of the supraspinatus tendon, whereas in 5 (23.8%), a partial articular sided supraspinatus tendon tear and in 2 (9.5%) patients, a subtotal tear was observed. One patient (4.8%) showed a complete transmural supraspinatus tendon tear. Conclusions: Traumatic concomitant glenohumeral injuries in scapula body fractures seem to be more frequent than generally expected. Subsequent surgical treatment of these formerly missed but therapy-relevant injuries may increase functional outcome and reduce the postoperative complication rate following scapula body fractures.
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Affiliation(s)
- Michael Zyskowski
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Sebastian Pesch
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Frederik Greve
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Markus Wurm
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Francesca von Matthey
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Daniela Pfeiffer
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Strahlentherapie und Radiologie, Ismaninger Str. 22, 81675 München, Germany;
| | - Sophie Felix
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Arne Buchholz
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
| | - Chlodwig Kirchhoff
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675 München, Germany; (M.Z.); (S.P.); (F.G.); (M.W.); (F.v.M.); (S.F.); (A.B.)
- Correspondence: ; Tel.: +49-89-4140-5100
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Schrage B, Christina M, Westermann D, Meyns B, Felix S, Gummert J, Theo DB, Reichenspurner H, Bernhardt A. Development of a European Risk Score for Left Ventricular Assist Device Implantation—The EUROMACS-LVAD Score. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nemchyna O, Dandel M, Solowjowa N, Hrytsyna Y, Stein J, Soltani S, Knierim J, Felix S, Falk V, Knosalla C. Strain Study in Patients after Surgical Ventricular Repair: Prognostic Role of Strain Parameters and Evaluation of Left-Ventricle Remodeling. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hennig F, Kemper D, Felix S, Yeter R, Potapov E, Starck C, Falk V, Knosalla C. Evolving Results in Post-VAD Heart Transplantation. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Menaga M, Felix S, Charulatha M, Gopalakannan A, Panigrahi A. Effect of in-situ and ex-situ biofloc on immune response of Genetically Improved Farmed Tilapia. Fish Shellfish Immunol 2019; 92:698-705. [PMID: 31202966 DOI: 10.1016/j.fsi.2019.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 06/08/2019] [Accepted: 06/12/2019] [Indexed: 05/20/2023]
Abstract
The present study is aimed to investigate the effect of biofloc intake on Genetically Improved Farmed Tilapia (GIFT), developed within the system and its influence as feed supplementation on water quality, growth performance, immunological parameters, antioxidant status, immune gene expression, and its resistance to Aeromonas hydrophila infection. GIFT Tilapia juveniles of 5.1 g (±0.05) were stocked at a density of 15/m3 in lined ponds of 300 m2 in triplicates for 180 days. The experimental groups consisted of T1-biofloc developed within the culture systems (insitu), T2-biofloc supplementation in fish feed (exsitu) and C- Control without biofloc. Distillery Spent wash was used as a carbon source to maintain the C/N ratio of 10:1 for floc development in T1. Free CO2, pH, BOD, dissolved oxygen, alkalinity, Calcium and Magnesium ions, Nitrate, Nitrite and ammonia were found to be significantly different between the treatments and control throughout the experiment. The immunological (Serum protein, Respiratory burst test (RBT) and Myeloperoxidase) and antioxidant indicators (Glucose, Superoxide dismutase (SOD) and catalase) were found to be significantly higher in T1 at the end of the trial. Increased weight gain, specific growth rate, survival and decreased feed conversion ratio was found in T1 when compared with the other experimental groups. Real time quantitative PCR analysis revealed that there was no folded expression of the immunological genes such as Metallothionein gene, cathepsin L, Toll like receptor 7, Interleukin 1 β and Tumour necrosis factor α in liver and intestine for both control and treatment. However, the upregulated expression of targeted genes except tumour necrosis factor α was found in head kidney of T1. At the end of the study, GIFT Tilapia when infected with Aeromonas hydrophila showed an improved immune response in T1 and T2 with lesser signs of infection than Control. The findings of the present study affirmed the importance of biofloc technology in triggering the immunomodulatory response of GIFT Tilapia with its upregulated immune gene expression and its role as an antimicrobial agent against Aeromonas hydrophila. This study suggests the adoption of in-situ (T1) based biofloc method to obtain better performance of GIFT Tilapia culture.
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Affiliation(s)
- M Menaga
- Department of Aquaculture, Dr.MGR.Fisheries College and Research Institute, Ponneri, India
| | - S Felix
- Tamil Nadu Dr.J.Jayalalithaa Fisheries University, Nagapattinam, India.
| | - M Charulatha
- Department of Aquaculture, Dr.MGR.Fisheries College and Research Institute, Ponneri, India
| | - A Gopalakannan
- Department of Aquaculture, Dr.MGR.Fisheries College and Research Institute, Ponneri, India
| | - A Panigrahi
- Principal Scientist, Crustacean Culture Division, ICAR-Central Institute of Brackishwater Aquaculture, Chennai, India
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Greve F, Beirer M, Zyskowski M, Crönlein M, Müller M, Pesch S, Felix S, Biberthaler P, Buchholz A, Kirchhoff C. Prospective outcome analysis following tenodesis of the long head of the biceps tendon along with locking plate osteosynthesis for proximal humerus fractures. Injury 2019; 50:681-685. [PMID: 30770122 DOI: 10.1016/j.injury.2019.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Fractures of the proximal humerus are often associated with lesions of the long head of the biceps (LHB) tendon. This often leads to prolonged shoulder pain. Hence, many surgeons decide to perform a tenodesis of the LHB tendon simultaneous to ORIF. The purpose of this study was to evaluate the postoperative outcome after interlocking plate fixation and biceps tenodesis for treating proximal humerus fractures. METHODS 56 patients (38 females, 18 male) suffering from proximal humerus fractures who underwent surgery were retrospectively included. 26 of these 56 patients (19% Neer II, 38% Neer III, 43% Neer IV) were treated with simultaneous tenodesis of the LHB tendon when ORIF using interlocking plate fixation was performed. 30 patients (17% Neer II, 40% Neer III, 43% Neer IV) served as control group receiving only interlocking plate fixation. The patients were asked to complete the Munich Shoulder Questionnaire (MSQ) for evaluation of postoperative shoulder function. Results of the Disabilities of the Arm, Shoulder and Hand (DASH) Score and Shoulder Pain and Disability Index (SPADI) were calculated from the MSQ. Patients were clinically evaluated for a positive O'Brien test and Popeye sign. RESULTS The tenodesis group demonstrated significant superior outcome regarding the MSQ (mean 90.47 points vs. 79.41 points, p = 0.006), DASH Score (mean 4.2 points vs. 16.81 points, p = 0.017) and SPADI (mean 94.59 points vs. 83.56, p = 0.045). Flexion, external rotation and the capability of throwing a soft ball were significantly improved in the tenodesis group compared to the control group. The O'Brien test as indicator for lesions of the LHB was positive in fewer patients of the tenodesis group (2/26, vs. 21/30, p = 0.001). There was no significant difference of a positive Popeye Sign. CONCLUSION Our results show evidence of an improved shoulder function when a simultaneous tenodesis of the LHB tendon is performed during treatment of proximal humerus fractures using interlocking plate fixation.
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Affiliation(s)
- F Greve
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - M Beirer
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - M Zyskowski
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - M Crönlein
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - M Müller
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - S Pesch
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - S Felix
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - P Biberthaler
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - A Buchholz
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany
| | - C Kirchhoff
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Germany.
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Baraquin A, Hervouet E, Richou C, Flori P, Peixoto P, Azizi A, Delabrousse E, Blagosklonov O, Umhang G, Bresson-Hadni S, Valot B, Grenouillet F, Felix S, Heyd B, Mantion G, Di Martino V, Montange D, Vanlemmens C, Vuitton DA, Weil-Verhoeven D, Chavanet P, Dalle F, Gohier S, Minello A, Piroth L, Dumortier J, Mabrut JY, Wallon M, Frentiu E, Machouart M, Watelet J, Chemla C, Feron T, Heurge-Berlot A, Sommacale D, Thiefin G, Abou-Bacar A, Brunet J, Candolfi E, Hansmann Y, Lefebvre N. Circulating cell-free DNA in patients with alveolar echinococcosis. Mol Biochem Parasitol 2018; 222:14-20. [DOI: 10.1016/j.molbiopara.2018.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/10/2018] [Accepted: 04/16/2018] [Indexed: 12/15/2022]
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Parthiban F, Balasundari S, Gopalakannan A, Rathnakumar K, Felix S. Comparison of the Quality of Chitin and Chitosan from Shrimp, Crab and Squilla Waste. ACTA ACUST UNITED AC 2017. [DOI: 10.12944/cwe.12.3.18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Chitin and Chitosan obtained from the crustaceans are having more biological value such as physiological compatibility, non-toxicity, bio digestibility, adsorption and chelating capacity. These biological values of chitosan depend on the quality parameters which are directly related to the source of the raw material. In this study, three commercially available crustacean shell waste such as shrimp, crab and squilla were used for the extraction of chitin and chitosan. The chemical treatment of demineralization, deproteinization and deacetylation were used for the production of chitosan. The viscosity quality parameter of the shrimp chitosan (5300cPs) was better than the crab and squilla chitosan. It is due the high solubility (97.65%) of the shrimp chitosan in 1% acetic acid. The degree of deacetylation of the shrimp chitosan (81.24%) directly relates the solubility of the chitosan. The chitosan with these quality parameters considered to be the excellent biological value. The yield of shrimp chitosan (15.4%) was also more when compare to crab and squilla chitosan. These result showed that utilisation of shrimp shell waste for the production of chitin and chitosan will give more economical and biological value along with reduction of environmental pollution.
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Affiliation(s)
- F. Parthiban
- Fisheries College and Research Institute,Tamil Nadu Fisheries University, Ponneri, India
| | - S. Balasundari
- Fisheries College and Research Institute,Tamil Nadu Fisheries University, Ponneri, India
| | - A. Gopalakannan
- Fisheries College and Research Institute,Tamil Nadu Fisheries University, Ponneri, India
| | - K. Rathnakumar
- Fisheries College and Research Institute,Tamil Nadu Fisheries University, Ponneri, India
| | - S. Felix
- Fisheries College and Research Institute,Tamil Nadu Fisheries University, Ponneri, India
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Masyuk M, Abel P, Hug M, Haneya A, Sack S, Sideris K, Langwieser N, Graf T, Fuernau G, Franz M, Westenfeld R, Kelm M, Felix S, Jung C. P3020Real-world clinical experience with percutaneous extracorporeal life support system (ECLS): analysis of the German Lifebridge registry. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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26
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Gutierrez MM, Pillai G, Felix S, Romero F, Onyango KO, Owusu-Agyei S, Asante KP, Barnes KI, Sinxadi P, Allen E, Abdulla S, Masimirembwa C, Munyoro M, Yimer G, Gebre-Mariam T, Spector J, Ogutu B. Building Capability for Clinical Pharmacology Research in Sub-Saharan Africa. Clin Pharmacol Ther 2017; 102:786-795. [PMID: 28378903 DOI: 10.1002/cpt.695] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/28/2017] [Accepted: 03/22/2017] [Indexed: 01/13/2023]
Abstract
A strong scientific rationale exists for conducting clinical pharmacology studies in target populations because local factors such as genetics, environment, comorbidities, and diet can affect variability in drug responses. However, clinical pharmacology studies are not widely conducted in sub-Saharan Africa, in part due to limitations in technical expertise and infrastructure. Since 2012, a novel public-private partnership model involving research institutions and a pharmaceutical company has been applied to developing increased capability for clinical pharmacology research in multiple African countries.
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Affiliation(s)
- M M Gutierrez
- Novartis Pharma and Novartis Institutes for Biomedical Research, Basel, Switzerland and Cambridge, Massachusetts, USA
| | - G Pillai
- Novartis Pharma and Novartis Institutes for Biomedical Research, Basel, Switzerland and Cambridge, Massachusetts, USA
| | - S Felix
- Novartis Pharma and Novartis Institutes for Biomedical Research, Basel, Switzerland and Cambridge, Massachusetts, USA
| | - F Romero
- Novartis Pharma and Novartis Institutes for Biomedical Research, Basel, Switzerland and Cambridge, Massachusetts, USA
| | - K O Onyango
- Kenya Medical Research Institute (KEMRI)/Strathmore University (SU), Nairobi, Kenya
| | | | - K P Asante
- Kintampo Health Research Center, Kintampo, Ghana
| | - K I Barnes
- University of Cape Town, Cape Town, South Africa
| | - P Sinxadi
- University of Cape Town, Cape Town, South Africa
| | - E Allen
- University of Cape Town, Cape Town, South Africa
| | - S Abdulla
- Ifakara Health Institute, Bagamoyo, Tanzania
| | - C Masimirembwa
- African Institute of Biomedical Science & Technology, Harare, Zimbabwe
| | - M Munyoro
- African Institute of Biomedical Science & Technology, Harare, Zimbabwe
| | - G Yimer
- Addis Ababa University/Regional Bioequivalence Center, Addis Ababa, Ethiopia
| | - T Gebre-Mariam
- Addis Ababa University/Regional Bioequivalence Center, Addis Ababa, Ethiopia
| | - J Spector
- Novartis Pharma and Novartis Institutes for Biomedical Research, Basel, Switzerland and Cambridge, Massachusetts, USA
| | - B Ogutu
- Kenya Medical Research Institute (KEMRI)/Strathmore University (SU), Nairobi, Kenya
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Ewert R, Ittermann T, Bollmann T, Spielhagen T, Dörr M, Schäper C, Warnke C, Obst A, Friedrich N, Felix S, Markus M, Piontek M, Penzel T, Fietze I, Glos M, Stubbe B, Desole S, Kaczmarek S, Schmidt C, Völzke H, Gläser S. Pneumologisch relevante Daten aus der „Study of Health in Pomerania“ (SHIP) – eine Übersicht zu den Kohorten, Methoden und ersten Ergebnissen. Pneumologie 2017; 71:17-35. [DOI: 10.1055/s-0042-117461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- R. Ewert
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - T. Ittermann
- Universitätsmedizin Greifswald, Institut für Community Medizin
| | - T. Bollmann
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | | | - M. Dörr
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - C. Schäper
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - C. Warnke
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - A. Obst
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - N. Friedrich
- Universitätsmedizin Greifswald, Institut für Klinische Chemie und Laboratoriumsmedizin
| | - S. Felix
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - M. Markus
- Universitätsmedizin Greifswald, Institut für Community Medizin
| | - M. Piontek
- Universitätsmedizin Greifswald, Institut für Community Medizin
| | - T. Penzel
- Universitätsmedizin Berlin, Charité, Medizinische Klinik für Kardiologie und Angiologie
| | - I. Fietze
- Universitätsmedizin Berlin, Charité, Medizinische Klinik für Kardiologie und Angiologie
| | - M. Glos
- Universitätsmedizin Berlin, Charité, Medizinische Klinik für Kardiologie und Angiologie
| | - B. Stubbe
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - S. Desole
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - S. Kaczmarek
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
| | - C. Schmidt
- Universitätsmedizin Greifswald, Institut für Community Medizin
| | - H. Völzke
- Universitätsmedizin Greifswald, Institut für Community Medizin
| | - S. Gläser
- Universitätsmedizin Greifswald, Klinik für Innere Medizin B
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Luquain A, Arbez-Gindre F, Bedgedjian I, Felix S, Harimenshi JM, Mihai IM, Monnien F, Singeorzan C, Valmary-Degano S. Habilitation des pathologistes pour l’évaluation du pourcentage de cellules tumorales lors du contrôle morphologique avant extraction d’acides nucléiques. Ann Pathol 2016; 36:268-74. [DOI: 10.1016/j.annpat.2016.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/12/2016] [Accepted: 06/15/2016] [Indexed: 01/17/2023]
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Aust S, Felix S, Auer K, Dekan S, Kenner L, Polterauer S, Reinthaller A, Pils D. Vergleichende Analyse der PD-L1 Expression in Primär- und Rezidivgewebeproben von Frauen mit epithelialem Ovarialkarzinom. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1579585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Bretagne CH, Petitjean A, Felix S, Bedgedjian I, Algros MP, Delabrousse E, Valmary-Degano S. [Metastasis revealing malignant peritoneum mesothelioma: About the difficulty to identify the primary tumors]. Ann Pathol 2016; 36:105-10. [PMID: 26993587 DOI: 10.1016/j.annpat.2015.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 10/27/2015] [Accepted: 12/04/2015] [Indexed: 12/31/2022]
Abstract
Peritoneal malignant mesothelioma is a rare and extremely aggressive tumor that is sometimes difficult to diagnose. We report two cases of metastatic malignant peritoneal mesothelioma. In one case, malignant metastatic cells were identified in cervical lymph nodes while in the other case, the cells were found in the liver. In both cases, metastases were identified before discovering the primary tumor. This led to the misdiagnosis of carcinoma of unknown origin. Nevertheless, the histological and immuno-histochemical patterns were typical of malignant mesothelioma. Regarding metastasis of unknown origin, a differentiation of epithelioid peritoneal malignant mesothelioma and adenocarcinoma proved to be difficult. Therefore, we discuss the diagnostic usefulness of immuno-histochemical mesothelioma markers.
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Affiliation(s)
- Charles-Henri Bretagne
- Service de pathologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France
| | - Alain Petitjean
- Besançon pathologie, 16, rue Professeur-Paul-Milleret CS 51369 25006 Besançon cedex, France
| | - Sophie Felix
- Service de pathologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France
| | - Isabelle Bedgedjian
- Service de pathologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France
| | - Marie-Paule Algros
- Service de pathologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France
| | - Eric Delabrousse
- Service de radiologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France; Université de Franche-Comté, 25000 Besançon, France
| | - Séverine Valmary-Degano
- Service de pathologie, CHRU de Besançon, 2, boulevard A.-Fleming, 25000 Besançon, France; Université de Franche-Comté, 25000 Besançon, France.
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Sibon I, Tourdias T, Felix S, Asselineau J, Bracoud L, Vivot A, Rouanet F, Renou P, Orgogozo J, Dousset V. Magnetisation transfer parameters and stroke outcome. J Clin Neurosci 2015; 22:1012-7. [DOI: 10.1016/j.jocn.2014.11.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 11/19/2014] [Accepted: 11/26/2014] [Indexed: 10/23/2022]
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Maria Eugenia M, Jimena Maria R, Teresa M, Maria carmen G, Amelia S, Felix S. CP-103 Optimisation of antibiotic treatment in general surgery. Eur J Hosp Pharm 2015. [DOI: 10.1136/ejhpharm-2015-000639.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Felix S, Chakkravarthy RBP, Grace AN. Microwave assisted synthesis of copper oxide and its application in electrochemical sensing. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1757-899x/73/1/012115] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Warnke C, Bollmann T, Ittermann T, Gläser S, Koch B, Schäper C, Lau K, Felix S, Ewert R. Referenzwerte für den arteriellen Sauerstoffgehalt. Pneumologie 2014; 68:788-92. [DOI: 10.1055/s-0034-1378089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ch. Warnke
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - T. Bollmann
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - T. Ittermann
- Institut für Community Medicine, Abteilung SHIP, Klinisch Epidemiologische Forschung, Universitätsmedizin Greifswald
| | - S. Gläser
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - B. Koch
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - Ch. Schäper
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - K. Lau
- Institut für Community Medicine, Abteilung SHIP, Klinisch Epidemiologische Forschung, Universitätsmedizin Greifswald
| | - S. Felix
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - R. Ewert
- Klinik für Innere Medizin B, Universitätsmedizin Greifswald
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Busch M, Busch R, Felix S. Update: implantierbare Diagnostika. Aktuel Kardiol 2013. [DOI: 10.1055/s-0033-1346887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- M. Busch
- Innere Medizin B, Kardiologie/Angiologie/Pneumologie/internistische Intensivmedizin, Universitätsmedizin Greifswald
| | - R. Busch
- Innere Medizin B, Kardiologie/Angiologie/Pneumologie/internistische Intensivmedizin, Universitätsmedizin Greifswald
| | - S. Felix
- Innere Medizin B, Kardiologie/Angiologie/Pneumologie/internistische Intensivmedizin, Universitätsmedizin Greifswald
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Santhosh C, James A, T M, Saranya M, Ramachandran R, Felix S, T M, Velmurugan V, Grace A. Solvothermal Preparation of Graphene Supported Mn Ferrites and its Photocatalytic Activity. ACTA ACUST UNITED AC 2013. [DOI: 10.2174/22106812112029990007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kuon E, Empen K, Weitmann K, Staudt A, Hummel A, Dörr M, Reffelmann T, Hoffmann W, Felix S. Long-Term Efficacy of a Mini-Course in Radiation-Reducing Techniques in Invasive Cardiology. ROFO-FORTSCHR RONTG 2013; 185:720-5. [DOI: 10.1055/s-0033-1335323] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- E. Kuon
- Abteilung für Kardiologie, Klinik Fränkische Schweiz, Ebermannstadt
| | - K. Empen
- Abteilung für Innere Medizin B, Ernst-Moritz-Arndt Universität, Greifswald
| | - K. Weitmann
- Institut für Versorgungsmedizin, Ernst-Moritz-Arndt Universität, Greifswald
| | - A. Staudt
- Abteilung für Kardiologie und Angiologie, Helios Kliniken, Schwerin
| | - A. Hummel
- Abteilung für Innere Medizin B, Ernst-Moritz-Arndt Universität, Greifswald
| | - M. Dörr
- Abteilung für Innere Medizin B, Ernst-Moritz-Arndt Universität, Greifswald
| | - T. Reffelmann
- Abteilung für Innere Medizin B, Ernst-Moritz-Arndt Universität, Greifswald
| | - W. Hoffmann
- Institut für Versorgungsmedizin, Ernst-Moritz-Arndt Universität, Greifswald
| | - S. Felix
- Abteilung für Innere Medizin B, Ernst-Moritz-Arndt Universität, Greifswald
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Bonnet C, Aupy J, Felix S, Marchal C. Intérêt du bilan dysimmunitaire dans une épilepsie isolée tardive. Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Affiliation(s)
- A. Riad
- Klinik und Poliklinik für Innere Medizin B, Universitätsmedizin Greifswald
| | - S. Felix
- Klinik und Poliklinik für Innere Medizin B, Universitätsmedizin Greifswald
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Vidal J, Carvalho N, Felix S, Bessa C, Vieira L, Patury P, Franco V, Silva A, Almeida L, Moreira M. 1159 Diversity of HPV Genotypes in Cervical Tumors From Rio De Janeiro, Brazil. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71755-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bollmann T, Schäper C, Walther D, Puls R, Vogelgesang S, Ewert R, Felix S. Progrediente klinische Verschlechterung bei ausgeprägter intra- und retroperitonealer Lipomatose - ein Fallbericht. Pneumologie 2012. [DOI: 10.1055/s-0032-1309182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gläser S, Henkel B, Obst A, Halank M, Bruch L, Felix S, Ewert R. Nicht-invasive Prädiktoren einer pulmonalen Hypertonie bei Patienten mit idiopathischer Lungenfibrose. Pneumologie 2012. [DOI: 10.1055/s-0032-1309167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bollmann T, Schäper C, Walther D, Puls R, Vogelgesang S, Ewert R, Felix S. Progrediente klinische Verschlechterung bei ausgeprägter intra- und retroperitonealer Lipomatose – ein Fallbericht. Pneumologie 2012. [DOI: 10.1055/s-0032-1302688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Koch B, Lau K, Ittermann T, Völzke H, Felix S, Ewert R, Schäper C, Gläser S. Spiroergometrische Referenzwerte für Parameter der Atemmechanik - Ergebnisse der Study of Health in Pomerania. Pneumologie 2011. [DOI: 10.1055/s-0031-1272228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dörr M, Ittermann T, Baumeister S, Reffelmann T, Kors J, Felix S, Völzke H. Are changes of serum TSH levels associated with alteration of cardiac electrical activity? Results from a large population-based cohort study. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Völzke H, Lorbeer R, Dörr M, Kock H, Assel H, Ott K, Völker U, Hecker M, Hoffmann W, Nauck M, Zygmunt M, Felix S, Kroemer H. Greifswald Approach to Individualized Medicine (GANI_MED) – Rationale and Design. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schipf S, Alte D, Völzke H, Friedrich N, Haring R, Lohmann T, Rathmann W, Nauck M, Felix S, Hoffmann W, John U, Wallaschofski H. Prävalenz des Metabolischen Syndroms in Deutschland: Ergebnisse der Study of Health in Pomerania (SHIP). DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1247406] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Koch B, Gläser S, Friedrich N, Völzke H, Felix S, Ewert R, Schäper C. Referenzwerte für die Bodyplethysmografie bei Erwachsenen – Ergebnisse der Study of Health in Pomerania (SHIP). Pneumologie 2010. [DOI: 10.1055/s-0030-1251306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gläser S, Schäper C, Warnke C, Obst A, Felix S, Opitz C, Ewert R, Koch B. Endothelfunktion: ein peripher messbares Surrogat für Gasaustauscheffizienz und kardiopulmonale Belastbarkeit? Pneumologie 2010. [DOI: 10.1055/s-0030-1251114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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